Stoneshield Data Center

500 MW of Innovation and Impact

A milestone in European digital infrastructure

The Altamira Project, led by XDC Properties (a subsidiary of Stoneshield Capital group), represents the largest investment in the history of Cantabria: a 3.6 billion euro initiative that will create a new technological campus housing a 500 MW data center. The project will boost the region’s economy, technological positioning, and employment landscape.

This data campus will be made up of twelve adjacent data center modules of 40 MW each and feature 75,000 sqm of photovoltaic panels, ensuring a commitment to sustainability and renewable energy. The modular development will be phased to match client growth, ensuring flexibility and ease of integration.

Construction is expected to begin in the first quarter of 2025, with operations starting in 2032. Once fully operational, the data center will directly and indirectly employ nearly 1,500 people, consolidating Cantabria’s position as a technological hub in Southern Europe.

Sener’s Role in the Project

Quark: Driving the engineering of Stoneshield’s data hub

Quark, part of the engineering and technology group Sener, performs the technical support of Altamira Project. As the technical advisor to XDC Properties, Quark is contributing its expertise in large-scale infrastructure and sustainable energy integration.

According to Quark’s CEO, Ricardo Abad, the modular approach and renewable infrastructure—such as the photovoltaic panel surface—are key pillars of the design strategy, enabling the project to adapt to evolving technological demands while reducing carbon emissions. Quark’s involvement ensures a robust and forward-thinking engineering foundation for the Stoneshield data center.

Characteristics

500 MW capacity data center

One of Europe’s most powerful data centers, developed to meet the increasing global demand for cloud services, AI, IoT and big data.

12 modular buildings

The campus will be composed of twelve 40 MW modules, allowing for phased development and scalability according to client needs.

Renewable energy integration

A photovoltaic installation of 75,000 sqm will supply part of the campus’s power demand, promoting sustainability and reducing environmental impact.

Strategic geographic location

Located near the ANJANA submarine cable landing station, the site will benefit from unmatched connectivity with North America.

Construction to begin in 2025

Development is scheduled to start in Q1 2025, with operations planned for 2032.

Project Advantajes

Economic development catalyst

With over €3.6 billion invested, the project will significantly boost Cantabria’s GDP and attract global digital business.

Job creation and social impact

More than 1,500 direct jobs during construction and 1,450 during operations will enhance local employment.

Environmental sustainability

The data center will reduce CO2 emissions through renewable energy use and advanced efficiency systems.

Figures

€3.6 billion

Largest investment ever received in Cantabria for a single infrastructure project.

1,500+ jobs

Direct jobs created during the construction phase of the Altamira data center campus.

500 MW

Total capacity of the data center, placing it among the largest in Europe.

AEROSPACE & DEFENSE

DIAGNOSTICS

DIGITAL

ENERGY

MARINE

MOBILITY

RENEWABLE INVESTMENTS

Stoneshield Data Center

Quark (Sener Group) performs the technical support of a 500 MW sustainable data campus in Cantabria, the largest tech investment in the region’s history.